Single-order soft x-ray spectra with spectroscopic photon sieve

doi:10.1088/1674-1056/ab81f0

Abstract A single-order diffraction transmission grating named spectroscopic photon sieve (SPS) for soft x-ray region is proposed and demonstrated in this paper. The SPS consists of many circular pinholes located randomly, and can realize both free-standing diffractions and the suppression of higher-order differations. In this paper, the basic concept, numerical simulations, and calibration results of a 1000-lines/mm SPS for soft x-ray synchrotron radiation are presented. As predicted by theoretical calculations, the calibration results of a 1000-lines/mm SPS verify that the higher-order diffractions can be significantly suppressed along the symmetry axis. With the current nanofabrication technique, the SPS can potentially have a higher line density, and can be widely used in synchrotron radiation, laser-induced plasma diagnostics, and astrophysics.

Keywords: higher-order diffraction suppression extreme ultraviolet and soft x-rays single-order diffraction grating

Received: 13 July 2019
Revised: 26 December 2019
Accepted manuscript online:

PACS:	41.85.Si	(Particle beam collimators, monochromators)
	42.25.Fx	(Diffraction and scattering)
	42.79.Dj	(Gratings)

Fund: Project supported by the National Natural Science Foundation for Young Scientists of China (Grant No. 11805179).

Corresponding Authors: Lei-Feng Cao
E-mail: leifeng.cao@caep.cn

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Yu-Lin Gao(高宇林), Lai Wei(魏来), Qiang-Qiang Zhang(张强强), Zu-Zua Yang(杨祖华), Wei-Min Zhou(周维民), Lei-Feng Cao(曹磊峰) Single-order soft x-ray spectra with spectroscopic photon sieve 2020 Chin. Phys. B 29 054101

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[1]	Higher order harmonics suppression in extreme ultraviolet and soft x-ray Yong Chen(陈勇), Lai Wei(魏来), Feng Qian(钱凤), Zuhua Yang(杨祖华), Shaoyi Wang(王少义), Yinzhong Wu(巫殷忠), Qiangqiang Zhang(张强强), Quanpin Fan(范全平), Leifeng Cao(曹磊峰). Chin. Phys. B, 2018, 27(2): 024101.

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